What is the current water temperature in Fukuoka?

Q: What is the current water temperature in Fukuoka?

As of now, in Fukuoka, the water temperature is 15.93°C. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration.

Japan > Fukuoka

Water temperature in Fukuoka

Detailed information about the current water temperature in Fukuoka. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.

60.7

°F

April 18, 10:18

Trend:

stable

Yesterday:

60.3°F

Tomorrow:

60.7°F

Sunrise:

05:45

Sunset:

18:51

Day Length:

13 h. 6 min.

Fukuoka in April

Minimum:

57.5°F

Average:

59.0°F

Maximum:

61.3°F

Sea water temperature in Fukuoka today

As of now, in Fukuoka, the water temperature is 60.7°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 0.6°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to stay about the same.

Recent sea temperature and forecast

Today's water temperature is notably higher than the average recorded over the past two weeks, indicating a significant warming trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 61.2°F on 2022, while the historical minimum was 58.2°F on 2025.

latest data

last year

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the histoorical minimum and others when it was close to the historical maximum. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 61.2°F, with minimum temperature starting at 60.7°F, while the maximum might reach 61.9°F.

Daily water temperature in Fukuoka

Date	Current Year actual* / forecast**	last year	10 years average
Apr 4	59.5°F	56.0°F	57.3°F
Apr 5	59.0°F	56.2°F	57.7°F
Apr 6	58.8°F	55.7°F	57.8°F
Apr 7	59.1°F	56.5°F	58.1°F
Apr 8	57.9°F	56.1°F	57.9°F
Apr 9	58.0°F	57.9°F	58.5°F
Apr 10	58.5°F	58.0°F	58.9°F
Apr 11	58.2°F	57.8°F	58.9°F
Apr 12	58.8°F	58.8°F	58.9°F
Apr 13	60.2°F	59.3°F	59.3°F
Apr 14	59.9°F	58.5°F	59.3°F
Apr 15	60.4°F	58.3°F	59.3°F
Apr 16	60.8°F	57.3°F	59.6°F
Apr 17	60.3°F	57.7°F	59.7°F
Apr 18	60.7°F	58.2°F	60.0°F
Apr 19	60.7°F	59.1°F	60.0°F
Apr 20	60.8°F	59.3°F	60.1°F
Apr 21	60.9°F	59.4°F	60.2°F
Apr 22	61.1°F	60.1°F	60.5°F
Apr 23	61.3°F	60.2°F	60.7°F
Apr 24	61.6°F	60.7°F	61.0°F
Apr 25	61.9°F	60.9°F	61.3°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Fukuoka by month

In Fukuoka, the months July through October offer comfortable swimming conditions, which amounts to 112 swimming days.

The warmest water in Fukuoka was recorded on August 4, 2024, reaching a 88.2°F. While the coldest temperature occurred on March 10, 2025, dipping to 51.7°F. The average readings by season are 58.5°F in Winter, 60.2°F in Spring, 77.8°F in Summer, and 73.5°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Kitakyushu	61.1°F	30mi
Shimonoseki	61.4°F	39mi
Kumamoto	64.1°F	57mi
Nagasaki	64.5°F	66mi

* current water temperature in this city

** straight line distance from Fukuoka